The sound hole is an opening on the body of the string instrument, usually the top soundboard. The earpiece has a different shape:
- Round in upper guitar and traditional back bowl mandolins;
- F-holes in instruments of the violin family, archtop mandolin and in the archtop guitar;
- C-holes in violas da gamba;
- Roses in the harp;
- D-holes in Bowed lyra
Some instruments have more than one force (mandolins may have F-holes, round or oval holes). The round or oval or rosette hole is usually one, under the strings. C-holes, D-holes and F-holes are usually made in pairs placed symmetrically on both sides of the string. Most hollow-hollow and semi-hollow electric guitars also have F-holes.
Although the earpiece helps the sound of the acoustic instrument project more efficiently, the sound does not just come from the earpiece. The sound radiates from the surface area of ​​the audible board, with the earpiece giving an opening to the resonance chamber formed by the body, letting the sounding board vibrate more freely, and letting the air vibrate inside the instrument traveling outside the instrument.
By 2015, researchers at MIT, in collaboration with violin makers at North Bennet Street School, publish an analysis that maps the evolution and improves the effectiveness of violin F-hole design over time.
Video Sound hole
Alternative earpiece design
Some Ovation string instruments feature a unique soundhole architecture with multiple small earpieces combined with a composite curved guitar body that is said to produce crisp and clear sound.
Tacoma Guitars has developed a unique "paisley" soundhole placed on the left side of the fight on their "Wing Series" guitar. This is a relatively low pressure area that requires less support to support the hole.
Some hollowbody or semi-hollow electric guitars, such as Thinline Fender Telecaster and Gibson ES-120T, have one f-hole instead of two, usually on the bass side.
B & amp; G Guitars, the private guitar maker from Tel Aviv, Israel, used their "back" earpiece on their guitars
Holes that are not positioned above an acoustic guitar are called soundports . They are usually additionally to the main soundhole, and are located on the side of the instrument face up in a play position, allowing players to monitor their own sound.
Gallery
Maps Sound hole
References
External links
- Stringworks U - a brief explanation of the effect of the earpiece, with a F-shaped hole closeup diagram
Source of the article : Wikipedia
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